The horn was not working in my 2016 Ford Explorer (FPIU), and it turned into a “fun opportunity” to learn about all of the parts of a horn circuit and how to figure out which parts were working and which parts were not. By the end of this, I hope you can get your own horn working.

Tips for removing air bag / steering wheel / clock spring on 2011-2019 Explorers:    • Ford Explorer (FPIU) Airbag, Steering...  

Fuses and fuse puller: https://amzn.to/3S4DuGv
Relay puller: https://amzn.to/41dcpVz
Test light: https://amzn.to/4aL9Eiv
Multimeter: https://amzn.to/48jxCzY

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Chapters

0:00 No Horn?
0:15 Check Horn and Harness
2:27 Check Fuse and Relay
5:52 Check Horn Switch
9:36 Look for Wire Breaks Under Dash
12:42 Try Bypassing the Steering Column
14:15 Verify the Steering Column is Grounded
15:31 Check Steering Column Wiring & Clock Spring

Correction:
06:40 This also applies to 2011 Explorers